Add uninstallReason to Settings dump

We used to print the installReason, but not the uninstallReason.

Test: manual
Bug: 216636343 (to help with it)
Change-Id: I7c3bf1cb61cef2972c457021e68599c2a10b450f

services/core/java/com/android/server/pm/Settings.java

@@ -4869,6 +4869,9 @@ public final class Settings implements Watchable, Snappable {
             date.setTime(pus.getFirstInstallTime());
             pw.println(sdf.format(date));
 
+            pw.print("      uninstallReason=");
+            pw.println(userState.getUninstallReason());
+
             if (userState.isSuspended()) {
                 pw.print(prefix);
                 pw.println("  Suspend params:");